JPH03160218A - Radiant space heater - Google Patents

Abstract

PURPOSE:To enable a user to obtain an optimum warm feeling on each occasion from the starting of the operation of the present heater until the indoor circumstance is stabilized by changing a radiant heat flux density that is allowed to act on a user's body in accordance with its temperature feeling. CONSTITUTION:When the present device starts to operate, a radiant heater 1 is lighted and a thermistor 4 detects a room temperature T. If the detected value is lower than a first preset temperature Ta1, a movable reflecting plate 2b is turned inwardly by a driving mechanism consisting of a motor and a link means so as to increase a radiant heat flux density and provide a first radiant flux density whose radiant heat is projected onto a user's body, thereby giving as warm feeling soon to the user even when he feels cold. At a point of time when the room temperature T reaches the first preset temperature Ta1, the movable reflecting plate 2b is turned outwardly so as to provide a second radiant heat flux density whose radiant heat is projected onto the whole body including the arms and legs. When the room temperature T further increases to satisfy the user's warm feeling, the movable reflecting plate 2b is further turned outwardly so as to provide a third radiant heat flux density whose radiant heat heats the wall surfaces and the floor plane in the room, so that secondary radiant heat therefrom serves to warm the body from user's surroundings thus providing comfortable heating effects.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a radiant heating device capable of controlling radiant heat.

2. Description of the Related Art Conventionally, this type of radiant heating apparatus has a structure in which a reflector plate 2 is provided behind a radiant heater 1 and radiant heat is irradiated in front of the apparatus 3, as shown in FIG. Furthermore, for example, JP-A No. 6
As disclosed in Japanese Patent No. 2-136785, there is a device that obtains a certain level of warmth by detecting the distance to an object in front of the device and controlling the amount of heat from the radiant heater 1.

Problems to be Solved by the Invention However, with such conventional radiant heating devices, the room temperature is low and in a cold room, you cannot get warmth unless you get close to the device itself, and conversely, in a warm room, you cannot get warmth directly There is an inconvenience that the radiant heat hitting the human body causes a feeling of heat.

The present invention solves the above-mentioned problems, and provides a comfortable heating effect by providing a rapid onset of thermal sensation for the human body, eliminating the localized heat sensation of the human body that tends to occur with conventional radiant heaters. The primary purpose is to do so.

The second purpose is to improve control performance.

Means for Solving the Problems In order to achieve the above first object, the present invention provides a radiant heater, a radiant heat flux density variable means for changing the radiant heat flux density from the radiant heater, and detects the indoor air temperature. a first radiant heat flux density state in which the radiant heat is concentrated only on the trunk of the human body in the heated room, and a second radiant heat flux density state in which the entire human body is irradiated with the radiant heat based on the output of the room temperature detecting means. A control device is provided for controlling the radiant heat flux density variable means in a radiant heat flux density state and a third radiant heat flux density state for diffusing radiant heat indoors.

Further, in order to achieve the second object, the present invention is configured such that the control device is provided with a timer, and the radiant heat flux density variable means is controlled based on the time measured by the timer and the output of the room temperature detection means. It is something.

Function: Due to the above-mentioned principles, the present invention prevents body heat from radiating away from the human body when the room temperature is low and is therefore very cold, and heats the trunk, which has a large effect on the sense of warmth and provides warmth easily. The radiant heat flux density is such that as the room temperature increases, the radiant heat flux density is such that the entire human body can be heated to prevent local heat sensation, warm the peripheral parts, and promote blood circulation throughout the body. If the room temperature rises further,
The radiant heat flux density can be set such that walls and floors can be warmed by radiant heat, and the human body can be warmed from the surroundings, and the i'PJ can be finely controlled to match the human body's sense of temperature.

In addition, by installing a timer in the control device, when the rise in room temperature is suppressed due to the opening and closing of the artificial door or drafts, the operation will be compensated to prevent the human body from feeling hot.
The radiant heat flux density is switched based on the time since the start of operation.

EXAMPLE Hereinafter, an example of the present invention will be described with reference to FIGS. 1 to 4. As shown in FIG. 1, the radiant heating device main body 3 includes a radiant heater 1 and a fixed reflector 2a as a means for changing the radiant heat flux density from the radiant heater 1.
and a movable reflector 2b, a thermistor 4 for detecting indoor temperature,
The movable reflector 2b is controlled by a control circuit 5 and a drive mechanism 6 as a control device based on the output of the circstar 4.

FIG. 2 is a brochure diagram of the control device, in which the drive mechanism 6 for the movable reflector 2b consists of a motor 7 and a link mechanism 8.

Radiant heater 1, fixed reflective temporary 2a and movable reflective plate 2b
There are three types of radiant heat flux densities from the device main body 3 created by these, and these are shown in FIG. In the figure, the device main body 3 is installed on the wall near the ceiling of the room 9, and with respect to the human body lO, A is the first radiant heat flux density (solid line) that heats the trunk, and B is the first radiant heat flux density (solid line) that heats the human body 10 as a whole. The second radiant heat flux density (broken line) that performs heating, C is the third radiant heat flux density (dotted chain line) that diffuses radiant heat into the room 9 and heats the wall and floor surfaces.

In the above structure, the operating state will be explained with reference to the flowchart of FIG. When the operation starts, the radiant heater 1 lights up and the thermistor 4 detects the room temperature T. When this value is less than the i-th set temperature Tal, the movable reflector 2b is moved by the motor 7 so as to increase the radiant heat flux density and provide the first radiant heat flux density that irradiates the trunk of the human body IO in FIG. It is rotated inward by a drive mechanism 6 consisting of a link mechanism 8 and a link mechanism 8, and immediately gives a sense of warmth even in cold weather. Afterwards, as a sensation of warmth is gained, the room temperature T also rises.
If you continuously irradiate only the trunk with a high-density radiant heat flux, that part will feel hot, but peripheral parts such as the extremities will not warm up. Therefore, when the room temperature T reaches Tal, the movable reflector 2b is rotated outward so as to provide a second radiant heat flux density that irradiates the entire human body 10 including the extremities. If the room temperature T further increases and reaches Ta2, it becomes unnecessary to apply radiant heat directly to the human body 10. Once the sense of warmth is satisfied, a person will feel uncomfortable due to the radiant heat acting from one direction, so the walls and floor of the room 9 will be heated and the secondary radiation will be applied to the human body 10. The movable reflector plate 2b is further rotated outward so that the third radiant heat flux density is reached, which provides a comfortable heating effect by heating the area from the surrounding area.

As described above, according to the radiant heating device of the embodiment of the present invention,
By detecting the room temperature T, the temperature sensation of the human body 10 is predicted, and by controlling the action of radiant heat on the human body 10 by changing the radiant heat flux density according to each temperature range, the room temperature can be maintained from the start of operation. This has the effect that a comfortable state can be maintained at all stages from the time the vehicle ascends until the indoor environment stabilizes.

Next, an embodiment in which a timer 11 is provided in the control device as shown in FIG. 5 and the movable reflective temporary 2b is controlled based on both the room temperature detection thermistor 4 and the time measured by the timer 11 will be explained with reference to the flowchart in FIG. do. Even if the rise in room temperature is suppressed by opening/closing the artificial door or by drafts, irradiation of radiant heat to the trunk of a frog will eventually cause a feeling of heat signature, so a timer is used to measure the time from the start of operation, and the time is If the caulking set time t1 and t2 are completed, even if the room temperature has not reached the set temperature, the radiant heat flux changes from the first radiant heat flux density state at the start of operation to the second radiant heat flux density state to the third radiant heat flux state. By sequentially switching to the bundle density state, it has the effect of preventing the feeling of heat.

All of the above-mentioned embodiments are characterized by a quick onset of temperature sensation, and are particularly effective in heating non-occupied rooms where usage time is limited, such as toilets, changing rooms, bathrooms, etc.

Note that although the embodiment has been described with respect to a wall-mounted type, similar effects can be obtained with a floor-standing type.

Effects of the Invention As described above, according to the present invention, by changing the radiant heat flux density that acts on the human body according to the human body's sense of temperature, the heat flux can be adjusted depending on the situation from the start of operation to after the indoor environment has stabilized. This provides an optimal sense of warmth. especially,
In cold weather, the method of heating the trunk of the human body has a higher radiant heat flux density than irradiating the entire human body including the extremities, which reduces loss and makes it easier to heat a wider area.
It is known to be efficient in terms of temperature sensation, and can provide a comfortable heating effect with less energy.

Further, in the present invention, even if the rise in room temperature is suppressed for some reason, the controller is provided with a timer and the radiant heat flux is switched to ensure reliable operation.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of the main body of a radiant heating device according to an embodiment of the present invention, Fig. 2 is a block diagram of the control device, Fig. 3 is a diagram showing the radiant heat flux density in the same room, and Fig. 4 is a diagram showing the radiant heat flux density in the same room. FIG. 5 is a block diagram of a control device according to another embodiment of the present invention, FIG. 6 is a flowchart of the same operation, and FIG. 7 is a diagram of a conventional radiant heating device. FIG. 1...Radiation heater, 2a...Fixed reflector, 2b...Movable reflector, 3...Radiant heating device body, 4...・Thermistor, 5...
...Control circuit, 6...Reflector drive mechanism, 11
...Timer. Radiation #'TI: One Ta Fixed Reverse Itg Temporary movable reflector radiant heating system body thermal imaging device? Lecture 8 C4 Condolence 3 Figure 4 Figure 6 Younger brother 7 Figure and

Claims (2)

[Claims] (1) A radiant heater, a radiant heat flux density variable means for changing the radiant heat flux density from the radiant heater, a room temperature detecting means for detecting the room temperature, and a temperature inside the heated room based on the output of the room temperature detecting means. A first radiant heat flux density state that concentrates radiant heat only on the trunk of the human body, a second radiant heat flux density state that irradiates the entire human body with radiant heat, and a third radiant heat flux that diffuses radiant heat indoors. A radiant heating device comprising a control device for controlling the radiant heat flux density variable means depending on the density state. (2) The radiant heating device according to claim (1), wherein the control device is provided with a timer, and the radiant heat flux density variable means is controlled based on the time measured by the timer and the output of the room temperature detection means.